CN106163762B - Melting extrusion forms the roller assembly and melting extrusion forming method of the roller of figuration, melting extrusion molding figuration - Google Patents
Melting extrusion forms the roller assembly and melting extrusion forming method of the roller of figuration, melting extrusion molding figuration Download PDFInfo
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- CN106163762B CN106163762B CN201480077828.5A CN201480077828A CN106163762B CN 106163762 B CN106163762 B CN 106163762B CN 201480077828 A CN201480077828 A CN 201480077828A CN 106163762 B CN106163762 B CN 106163762B
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- 238000002844 melting Methods 0.000 title claims abstract description 169
- 238000001125 extrusion Methods 0.000 title claims abstract description 163
- 239000007769 metal material Substances 0.000 claims abstract description 61
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims description 53
- 238000000576 coating method Methods 0.000 claims description 53
- 238000003825 pressing Methods 0.000 claims description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- -1 nickel-phosphorus Chemical compound 0.000 claims description 10
- 230000003287 optical Effects 0.000 claims description 10
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- 229920005668 polycarbonate resin Polymers 0.000 claims description 10
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- 239000011347 resin Substances 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- RYPKRALMXUUNKS-UHFFFAOYSA-N hex-2-ene Chemical compound CCCC=CC RYPKRALMXUUNKS-UHFFFAOYSA-N 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920005672 polyolefin resin Polymers 0.000 claims description 2
- 229920005990 polystyrene resin Polymers 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 108091006028 chimera Proteins 0.000 claims 3
- 239000010935 stainless steel Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 description 29
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Abstract
The roller (1A) of melting extrusion molding figuration used in the melting extrusion molding of thermoplastic resin is included in the metal roller main body portion (10) for being internally provided with thermophore flow path (11), cover first cartridge (12) on the surface of the center portion of roller main body portion (10), with second cartridge (13) on the surface of the both ends part in covering roller main body portion 10, first cartridge (12) is made by the first metal material of the thermal conductivity with 40W/mK or more, second cartridge (13) is made by the second metal material with 20W/mK thermal conductivity below, first cartridge (12) and at least part of the second cartridge (13) are bonded together.
Description
Technical field
The present invention relates to the roller of melting extrusion molding figuration, the roller assembly of melting extrusion molding figuration and meltings
Extruding forming method.
Background technique
In the melting extrusion molding for carrying out thermoplastic resin sheet, there is the molten of fine structure on surface frequently by using
Its fine structure is transferred to piece surface, thus to the sheetmolding being made of thermoplastic resin by the roller for melting extrusion molding figuration
The surface of product assigns various functions.Wherein, it forms surface with fine structure by melting extrusion by thermoplastic resin
When the sheetmolding product molding of composition, the transfer uniformity in width direction, particularly the transfer uniformity in sheetmolding product end
It is big problem.
In general, from T-die, the die lip of clothes hanger type mold flow out be made of molten thermoplastic resin piece (hereinafter,
Sometimes referred to simply as " piece ") it is used in the metal roller (hereinafter sometimes referred to " the first roller ") of melting extrusion molding figuration and pressing
Pressure roller (hereinafter sometimes referred to " the second roller ") between be pressed before, that is, in air-gap, cooled down by air, piece temperature
It is greatly reduced.The degree that the temperature reduces is very big in piece central portion and piece end difference, easier to be cooled closer to piece end,
Therefore temperature reduces big.Therefore, in piece central portion and piece end, the transfer state of the fine structure of the first roller surface is different, leads
The unevenness of every physical property (for example, birefringence, thickness) of piece central portion and piece end is caused to homogenize.
It, can as preventing the homogenized method of unevenness of transfer state in such piece width direction, every physical property
The different method of temperature change to enumerate the axis direction along the first roller for the piece for making to contact with the first roller.In general, first
The thermophore flow path for being internally provided with the surface temperature for controlling the first roller of roller.However, from thermophore flow path to first
In the case that the distance on the surface of roller is short, with from thermophore flow path to the distance on the surface of the first roller the case where compared with, with
The temperature change of the piece of one roller contact is bigger.Therefore, by make near the first roll end slave thermophore flow path to the first roller
The distance on surface than the first roller central portion slave thermophore flow path to the distance on the surface of the first roller, can make and the first roller end
The temperature change of the part of the piece of portion's contact is less than the temperature change of the part of the piece contacted with the first roller central portion.As a result,
It can be in the transfer state of the fine structure of the first roller surface of piece central portion and the realization of piece end and the homogenization of every physical property.
In this way, in order to make to shorten in the first roller central portion from thermophore flow path to the distance on the surface of the first roller, first
Roll end extends from thermophore flow path to the distance on the surface of the first roller, for example, using Japanese Patent Publication 6-001834 bulletin
Figure 11 and Figure 12 disclosed in structure.
Existing technical literature
Patent document
Patent document 1: Japanese Patent Publication 6-001834 bulletin
Summary of the invention
Problems to be solved by the invention
Structure disclosed in Figure 11 and Figure 12 of Japanese Patent Publication 6-001834 bulletin can be utilized by from the first roller
End face carry out prepared so-called slotter realization with the circular hole that cutting drilling opens thermophore flow path.However, if
The length of one roller (the metal roller of melting extrusion molding figuration) is long, then extremely using the processing of such cutting drilling progress
It is difficult.
Therefore, the purpose of the present invention is to provide for utilizing the melting extrusion method of forming by every physical property in central portion and end
The roller of the sheetmolding product (film molded product) of portion's indifference as far as possible molding melting extrusion molding figuration, have the melting extrusion at
The roller assembly of the melting extrusion molding figuration of the roller of type figuration and the roller group that figuration is formed using the melting extrusion
Fill the melting extrusion forming method of body.
The method used for solving the problem
For realizing the roller of the melting extrusion molding figuration of the 1st aspect of the present invention of above-mentioned purpose, feature exists
In the melting extrusion for being used for thermoplastic resin forms, and the roller of melting extrusion molding figuration includes: to be internally provided with load
The metal roller main body portion of hot body flow path, first cartridge on the surface of the center portion in covering roller main body portion and covering
Second cartridge on the surface of the both ends part in roller main body portion,
First cartridge is made by the first metal material of the thermal conductivity with 40W/mK or more,
Second cartridge is made by the second metal material with 20W/mK thermal conductivity below,
At least part of first cartridge and the second cartridge is bonded together.
For realizing the roller of the melting extrusion molding figuration of the 2nd aspect of the present invention of above-mentioned purpose, feature exists
In the melting extrusion for being used for thermoplastic resin forms, and the roller of melting extrusion molding figuration includes: to be internally provided with load
Hot body flow path and the outer surface of both ends part is provided with the roller main body portion of notch section and is respectively entrenched in the both ends in roller main body portion
The cartridge of partial notch section,
Roller main body portion is made by the first metal material of the thermal conductivity with 40W/mK or more,
Cartridge is made by the second metal material with 20W/mK thermal conductivity below,
The notch section in roller main body portion and at least part of cartridge are bonded together.
In addition, in the roller of the melting extrusion molding figuration of the 1st aspect of the present invention or second method, although not having
It limits, but the upper limit value of the thermal conductivity as the first metal material can enumerate 100W/mK, the heat as the second metal material
The lower limit value of conductance can enumerate 5W/mK.
Melting extrusion for realizing the 1st aspect of the present invention or second method of above-mentioned purpose forms figuration
Roller assembly includes roller (hereinafter, for convenience sometimes referred to as " the first roller ") and and the melting extrusion of melting extrusion molding figuration
The opposed pressing of roller of figuration is formed with roller (hereinafter, for convenience sometimes referred to as " the second roller "),
Melting extrusion forms the roller (the first roller) of figuration by the melting extrusion of the 1st aspect of the present invention or second method
The roller for forming figuration is constituted.
It is special for realizing the 1st aspect of the present invention of above-mentioned purpose or the melting extrusion forming method of second method
Sign is, to use the melting extrusion forming method of the roller assembly of melting extrusion molding figuration, melting extrusion molding
The roller assembly of figuration includes the roller (the first roller) of melting extrusion molding figuration and the roller with melting extrusion molding figuration
Opposed pressing forms the roller (the first roller) of figuration by the 1st aspect of the present invention or second with roller (the second roller), melting extrusion
The roller of the melting extrusion molding figuration of mode is constituted,
The melting extrusion forming method uses the molten thermoplastic resin squeezed out from mold in melting extrusion molding figuration
Roller (the first roller) and pressing passed through between roller (the second roller), to obtain sheetmolding product.In addition, sheetmolding product include piece,
Film, film molded product.
In the melting of the roller, the composition 1st aspect of the present invention of the melting extrusion molding figuration of the 1st aspect of the present invention
The roller of melting extrusion molding figuration of the roller assembly of extrusion molding figuration or the melting of the 1st aspect of the present invention are squeezed
The roller of the molding of melting extrusion used in forming method figuration is (hereinafter, sometimes use these melting extrusions molding figuration out
Roller be referred to as " first roller of the 1st aspect of the present invention etc. ") in, the second cartridge can be set as across the first cylindrical portion
The mode on the surface of the both ends part in the extension covering roller main body portion of part.Or the surface of the second cartridge can also be set as
The mode covered by the extension of the first cartridge.Furthermore it is possible to by the extension of the second cartridge and the first cartridge
It portion, or also can be by hot jacket method by the extension one of the second cartridge and the first cartridge by screwing togather come integrated
Body, additionally it is possible to by welding the extension integrally of the second cartridge and the first cartridge.As the second cylindrical portion
The ratio of the wall thickness of the extension of part and the first cartridge can illustrate 1:9 to 9:1.In addition, as the second cartridge and
Adding up to for the wall thickness of the extension of one cartridge, can illustrate 1mm to 10mm.Paying attention to the first of the 1st aspect of the present invention
In the case where the surface roughness of roller etc., it is desirable on the outside by the extension configuration of the first cartridge.In addition, paying attention to transferring
Property in the case where, it is desirable to by the second cartridge configuration on the outside.These are capable of the first roller of first method according to the present invention
Deng required specification, the difference of requirement and suitably select.
It is including that can be set as at least existing in first roller of the 1st aspect of the present invention of preferred embodiment described above etc.
The surface of first cartridge forms coated composition.Plating is formed on the surface of the first cartridge that is, both can be set to
The composition of layer, also can be set to and forms coated composition on the surface of the first cartridge and the second cartridge.
In addition, roller, the composition 2nd aspect of the present invention in the melting extrusion molding figuration of the 2nd aspect of the present invention
Melting extrusion molding figuration roller assembly melting extrusion molding figuration roller or the 2nd aspect of the present invention
Melting extrusion used in melting extrusion forming method forms the roller of figuration (hereinafter, sometimes forming these melting extrusions
The roller of figuration is referred to as " first roller of the 2nd aspect of the present invention etc. ") in, it can be set as in roller main body portion and cartridge
Surface form coated composition.
Moreover, in these cases, as the material for constituting coating, such as nickel-phosphorus alloy or copper, nickel, chromium can be enumerated,
It can be formed with electroless plating method or electrolytic plating method.More specifically, coating is for example preferably comprised selected from copper coating, nickel plating
At least one kind of coating in layer, electroless nickel-phosphorus coating, electrolysis nickel-phosphorus coating and chrome plating.In addition, having on production surface fine
When the first roller of concaveconvex structure, copper preferably low by Vickers hardness, to be imbued with processability, nickel constitute coating, and are requiring high Vickers
In the case where hardness, coating is preferably constituted by chromium.In addition, in the feelings for requiring moderately high Vickers hardness and microfabrication together
Under condition, coating is preferably constituted by nickel-phosphorus alloy.As the thickness of coating, 0.05mm can be illustrated to 2.0mm.Comprising above-mentioned
In first roller of the 1st aspect of the present invention or second method preferably comprised etc., it can be set as being formed with mill on the surface of coating
The mode of sand decorative pattern, prism decorative pattern or microlens array decorative pattern.Wherein, sandblasting, electro-discharge machining, chemical etching etc. can be passed through
Method forms frosted decorative pattern.In addition, prism decorative pattern or microlens array can be formed by the cutting etc. using diamond bit
Decorative pattern.Or the ornamental pattern for such as exterior material etc. can also be made.In the first cartridge and the second cylindrical portion
The surface (first roller of the 1st aspect of the present invention etc.) of part or roller main body portion and the cartridge (2nd aspect of the present invention
The first roller etc.) surface on coating formation or optical patterns processing the first cylindrical portion can be both installed in roller main body portion
It is carried out before part and the second cartridge, carries out, can also install before cartridge can also being installed in roller main body portion
After carry out.But in the case where progress before the first cartridge and the second cartridge are installed in roller main body portion, Huo Zhe
In the case where being carried out before cartridge is installed in roller main body portion, may be scratched due to coating, rotten or thermal strain and cause
Cylindricity is deteriorated, therefore, it is intended that after installing the first cartridge and the second cartridge in roller main body portion or in roller master
Cartridge is installed to carry out later in body portion.
According to circumstances, the first roller also can be used as mirror roller.That is, the surface that can be set as coating is the shape of mirror surface
State.Moreover, at this point, it is preferred that forming the hard chromium layers (present invention in the surface of the first cartridge and the second cartridge plating
The first roller of first method etc.), or preferably form hard chromium layers (this in roller main body portion and the surface of cartridge plating
First roller of the second method of invention etc.).Hard chromium layers are stone, and abrasiveness is excellent, and are not easy to scratch.The surface of hard chromium layers is thick
Rugosity is preferably at least set as 0.2S or less (being calculated as 50nm or less with arithmetic mean surface roughness).What is used as mirror roller
In the case of, since its abradant surface is transferred, so being able to carry out the molding of very flat planar chip molded product.That is, due to not
Only the mirror surface transferability of piece end improves, and is easy to flatten thick wall portion caused by the reduced amplitude as piece end, so can be into
Row whole face is uniformly suppressed, and the case where compared to common mirror roller is used, face precision is further increased.
Usually in the melting extrusion molding of thermoplastic resin, the molten thermoplastic resin flowed out from the die lip of mold exists
Reduced amplitude in air-gap before will contacting with the roller of melting extrusion molding figuration, sheetmolding product most end can extremely become sometimes
Thickness arrives, with the uncontrollable stage of the adjustment of die gap.In the molding of accurate figuration sheetmolding product, sheetmolding product most end
Thick wall portion since transfer obstruction factor can be become, so not preferably.In existing technology, sometimes not to the end heavy wall
Difference of height is arranged in roll end in the mode of portion's pressurization, but in first roller of the 1st aspect of the present invention or second method etc.,
Such roll end does not need setting difference of height.
In addition, include it is described above it is various preferably comprise, in the first roller of the 1st aspect of the present invention of form etc.,
First cartridge and the second cartridge are mounted in roller main body portion by hot jacket method,
The internal diameter of the first cartridge and the second cartridge under room temperature is being set as D2-i, by the roller main body under room temperature
The outer diameter in portion is set as D1-oWhen, it is desirable to meet
0mm≤D1-o- D2-i≤0.4mm
It preferably satisfies
0.05mm≤D1-o- D2-i≤0.20mm。
Wherein, it can illustrate
The outer diameter D in roller main body portion1-o: 200mm to 800mm
The wall thickness of first cartridge and the second cartridge: 1mm to 10mm.
Wherein, the wall thickness of the first cartridge and the second cartridge refers to, by under room temperature the first cartridge and
The outer diameter of second cartridge is set as D2-oWhen,
(D2-o- D2-i)/2。
According to the selection of the material (thermal conductivity) of the first cartridge and the second cartridge, the first cartridge and second
The selection of the wall thickness of cartridge can control the melting contacted with the first roller by the first cartridge and the second cartridge
The degree of the cooling carryover effects of thermoplastic resin.In from room temperature to 350 DEG C of temperature range, preferably the first cartridge and
The coefficient of linear expansion of second cartridge is less than the coefficient of linear expansion in roller main body portion.This is because being needed in melting extrusion molding
First roller is located to required set temperature, the first cartridge caused by being risen in order to prevent by the temperature of the first roller and the
The loosening of two cartridges.But it is greater than roller main body portion in the coefficient of linear expansion of the first cartridge and the second cartridge
Coefficient of linear expansion or in the case where same degree, it is slightly larger by obtaining hot jacket magnitude of interference, the first tubular can be prevented
The loosening of component and the second cartridge, additionally it is possible to which the end of the first cartridge and the second cartridge is welded to roller main body
Portion prevents from dallying and falls off.
In addition, include it is described above it is various preferably comprise, in the first roller of the 2nd aspect of the present invention of form etc.,
Cartridge is installed on roller main body portion by hot jacket method,
The internal diameter of the cartridge of room temperature is set as D2-i, the outer diameter of the notch section in the roller main body portion of room temperature is set as D1-o
When, it is desirable to meet
0mm≤D1-o- D2-i≤0.4mm
It preferably satisfies
0.05mm≤D1-o- D2-i≤0.20mm。
Wherein, it can illustrate
The outer diameter D in roller main body portion1-o: 200mm to 800mm
Cartridge wall thickness: 1mm to 10mm.
In addition, the outer diameter of the cartridge when wall thickness of cartridge refers to room temperature is set as D2-oWhen, (D2-o- D2-i)/
2。
It, can according to the selection of roller main body portion and the material (thermal conductivity) of cartridge, the selection of the wall thickness of cartridge
The degree of the cooling carryover effects of the molten thermoplastic resin contacted with the first roller is controlled by roller main body portion and cartridge.This
It is because needing for the first roller to be set as required set temperature in melting extrusion molding, in order to prevent by the temperature of the first roller
The loosening of cartridge caused by rising.But the coefficient of linear expansion of cartridge be greater than roller main body portion coefficient of linear expansion,
It is slightly larger by obtaining hot jacket magnitude of interference or in the case where being same degree, the loosening of cartridge can be prevented, also
The end of cartridge can be welded to roller main body portion to prevent from dallying and fall off.
In addition, include it is described above it is various preferably comprise, the 1st aspect of the present invention of form or second method
In first roller etc., the first metal material for example preferably includes carbon steel, chromium steel, chrome-molybdenum steel, cast iron or wolfram steel, more specifically, example
Such as, more preferably comprising chrome-molybdenum steel SCM440 as structural alloy steel material, the second metal material preferably for example including nickel steel, no
Become rusty steel, nickel alloy or titanium (Ti).In addition, in first roller of mode of the 1st aspect of the present invention etc., as composition roller main body
The metal material in portion, from the viewpoint of the intensity of material and rigidity, preferably from the material enumerated as the first metal material
Selection, that is, roller main body portion preferably includes the first metal material, and then from preventing the difference of the thermal property by coefficient of linear expansion etc. from making
At failure generation from the perspective of, it is desirable to be made of metal material identical with the first cartridge.As particularly preferred
Material, chrome-molybdenum steel can be enumerated.However, not limited to this, according to circumstances, it also can be by having the heat higher than the first metal material
The material of conductance makes.Thermal conductivity is as shown in table 1 below when the room temperature of each material.
[table 1]
The higher the better for the machining accuracy on the surface in roller main body portion, as its circular runout wish for 10/1000ths millimeters with
Under, more preferably 5/1000ths millimeters or less.The surface roughness on the surface about roller main body portion, is preferably added with polishing grinding
Work is set as at least 0.4S or so.For first roller of the 1st aspect of the present invention etc., roller main body portion gets rusty in order to prevent,
The thin coating of 10 μm or less thickness can be set.In addition, the machining accuracy about the first cartridge and the second cartridge,
Same as roller main body portion, the higher the better, but in the case where the first cartridge and the second cartridge, not only the first cylindrical portion
Outer diameter (the D of part and the second cartridge2-o), and for internal diameter (D2-i) it is also required to high machining accuracy.With regard to of the invention
For first roller of two modes etc., about the machining accuracy of cartridge, also same as roller main body portion, the higher the better, but not only
Outer diameter (the D of cartridge2-o), and for internal diameter (D2-i) it is also required to high machining accuracy.Wish outer diameter (D2-o), internal diameter
(D2-i) together, circularity is inhibited to inhibit at 5/1000ths millimeters or less, by cylindricity at 10/1000ths millimeters or less.
In addition, including various preferred compositions described above, first roller of the 1st aspect of the present invention of form etc.
In, the width that the roller for using melting extrusion molding figuration carries out the sheetmolding product of melting extrusion molding figuration is set as W0, will
The length of first cartridge is set as X1When, it preferably satisfies
W0> X1,
Or meet
30mm≤W0- X1≤300mm。
In addition, the length of the second cartridge is set as X2When, it preferably satisfies
30mm≤X2≤300mm。
Furthermore it is preferred that meeting
(X1+2·X2) > W0+30(mm)。
In addition, total length of the first cartridge and the second cartridge can either be set as effective with roller main body portion
Length it is identical, or be set as the effective length in shorter than roller main body portion.It is preferably set to X2Region and sheetmolding product end
It is overlapped the state of 30mm or more.
In addition, including various preferred compositions described above, first roller of the 2nd aspect of the present invention of form etc.
In, the width of the sheetmolding product for the roller institute's melting extrusion molding figuration for using melting extrusion molding figuration is set as W0, by roller
The length of the part in the roller main body portion between the notch section and notch section of main part is set as X1When, it preferably satisfies
W0> X1,
Or meet
30mm≤W0- X1≤300mm。
In addition, the length of cartridge is set as X2When, it preferably satisfies
30mm≤X2≤300mm。
In turn, it preferably satisfies
(X1+2·X2) > W0+30(mm)。
It is preferably set to X2Region 30mm or more Chong Die with the end of sheetmolding product state.
In first roller of the 1st aspect of the present invention etc., in order to be set as the first cartridge and the second cartridge extremely
The state that few a part is bonded together, for example, by opposite face and phase relative to the first cartridge of the second cartridge
Opposite face welding for the second cartridge of the first cartridge, or crimping.Specifically, can be appropriate
Selection makes the welding of the first cartridge and the melting of the second cartridge, integrated arc-welding process etc.；Make the first tubular
The opposite face of component and the opposite face of the second cartridge are closely sealed, apply heat, pressure, atom is thus made to carry out metal alloying each other
And the crimping of resistance welding, forging welding, friction welded method engaged etc.；Using than the first metal material and the second metal material
First cartridge and the second cartridge are melted it and are engaged with infiltration phenomenon by the solder of the low-melting alloy of material
Method for brazing etc. method.In addition, upon engagement, in the case where junction generates difference of height or protuberance, for first
The joint portion of shape component and the second cartridge carries out cylinder grinding or cylinder grinding, tru(e)ing face precision.
In addition, in first roller of the 2nd aspect of the present invention etc., in order to be set as roller main body portion and cartridge at least
The state that a part is bonded together, for example, by relative to the opposite face of the notch section in the roller main body portion of cartridge and relatively
In the opposite face welding of the cartridge of the notch section in roller main body portion, or crimping.Specifically, can suitably select
Select the welding for making roller main body portion and cartridge melting, integrated arc-welding process etc.；Make the opposite face in roller main body portion with
The opposite face of cartridge is closely sealed, applies heat, pressure, so that atom is carried out metal alloying each other and the electric resistance welding that is engaged
Connect, forging welding, friction welded method etc. crimping；Use the low-melting alloy than the first metal material and the second metal material
Solder, by roller main body portion and cartridge do not make its melt and the method for method for brazing for being engaged with infiltration phenomenon etc..In addition,
Upon engagement, junction generate difference of height or protuberance in the case where, for roller main body portion and cartridge joint portion into
The grinding of row cylinder or cylinder grinding, tru(e)ing face precision.
In first roller of the 1st aspect of the present invention or second method etc., roller main body portion be can be through cutting drilling from roller
The so-called slotter that the thermophore flow path of circular tube shaped is set in parallel by the side of main part relative to axis direction, is also possible to also
Referred to as propellers, the spiral double pipe roller of thermophore flow path.In addition, the quantity of thermophore flow path is essentially to appoint
Meaning.Water, thermophore oil can be enumerated as thermophore.
In addition, including various preferred configurations described above, the 1st aspect of the present invention of composition or second method
In melting extrusion forming method, it can be set as the composition with a thickness of 0.05mm to 0.5mm of obtained sheetmolding product, including
It is such composition, including various preferred forms described above, the 1st aspect of the present invention of composition or second method
Melting extrusion forms in the roller assembly or melting extrusion forming method of the roller of figuration, melting extrusion molding figuration, can
Being set as thermoplastic resin is selected from polycarbonate resin, acrylic resin, polystyrene resin, thermoplastic polyester, ring-type
The composition of polyolefin resin, thermoplastic resin in poly- methyl-1-pentene olefine resin, is particularly suitable for as polycarbonate resin.This
Outside, the additive of heat stabilizer, release agent, UV absorbent etc. can be properly added in these resins.Moreover, both can be set to institute
Obtained sheetmolding product are the form of light diffusing sheet, or also can be set to the form that obtained sheetmolding product are blast piece.
In addition, light diffusing sheet is conventionally formed with frosted decorative pattern, blast piece is conventionally formed with prism decorative pattern.
The melting extrusion molding machine for constituting melting extrusion molding machine uses well known melting extrusion molding machine.Melting
Extrusion shaping machine is generally configured with:
With mold, for by raw material thermoplastic resin plasticizing, melting heating cylinder (also referred to as charging basket) and
It is installed on heating cylinder, for the hopper to heating cylinder base feed thermoplastic resin.As suitable in this hair
Melting extrusion molding machine used in the melting extrusion forming method of bright first method or second method is able to use including logical
The well known single screw extrusion machine including run-in index double screw extruder or bevel-type of tuyere-type extruder or serial type extruder are double
The well known double screw extruder of screw extruder, structure, composition, the form of mold are that arbitrarily, can enumerate T-type in itself
Mold or clothes hanger type mold.Heating cylinder is usually by supply unit (feed zone), compression unit (compressional zone), quantifying portion (measurement zone)
It constitutes, is configured with mold in the downstream in quantifying portion, hopper is installed in supply unit.According to the melting extrusion molding machine used,
It is set as closed structure sometimes for by heating cylinder, carries out the transformation that can import non-active gas to heating cylinder.It is put into
The raw material thermoplastic resin of hopper is sent to compression unit in the supply unit of heating cylinder in a solid state, before and after compression unit
Plasticising, the melting for carrying out raw material thermoplastic resin, measure in quantifying portion, are extruded by mold.In addition, being provided with
In the case where exhaust outlet (ventilation oral area), exhaust outlet (ventilation oral area) can be arranged in compression unit or downstream (for example, pressing
Between contracting portion and quantifying portion).Heating cylinder, screw rod, the form of hopper, structure, be formed in be essentially it is any, be able to use
Well known heating cylinder, screw rod, hopper.
As the roller assembly in the present invention, can be used it is suitable for 300 μm of molding thickness sheetmolding product below, be only capable of
The thin dedicated molding machine of object sheetmolding product of enough single side pressings, also can be used suitable for 300 μm of molding thickness or more piece at
Type product, 3 rollers can be passed through constitute the thick dedicated molding machine of object sheetmolding product for carrying out two sides pressing.In sheet forming device
In the case where, roller configuration can may be horizontal type specification for longitudinal type specification, or can also be its mixed type.As can be used as
The roller of second roller (pressing roller) can enumerate metal rigid body roller, metallic elastic roller, rubber rollers etc..Wherein, metallic elastic roller includes
Roller before and after being as thin as 2mm is made in the thickness of metal outer cylinder and is wound with the roller etc. of thin metal sleeve on rubber rollers.
The pressing pressure (line pressure: the value that pressing force is obtained divided by the width of sheetmolding product) of first roller and the second roller is rigid in roller
Property allowed band in be it is any, as preference, 5~50kg/cm can be enumerated.The set temperature of first roller is set as comparing more
Using low 10 DEG C of the glass transition temperature of resin or so of temperature, but according to by removing bad caused bad order generation
Degree, can be with appropriate adjustment.
Shaping speed about sheetmolding product also can according to the thickness appropriate adjustment of sheetmolding product, but in order not to cause because
The generation of transfer bad phenomenon caused by the cooling deficiency of resin, preferably 2m/ minutes to 20m/ minutes or so.In such speed area
In domain, the cooling carryover effects of the roller of melting extrusion molding figuration of the invention are most significant, transferability easy to accomplish improve and
What removing bad phenomenon inhibited takes into account.
The effect of invention
First roller of the 1st aspect of the present invention etc. includes roller main body portion and the first cartridge and the second cartridge,
Define the thermal conductivity for constituting the first metal material of the first cartridge, second metal material for constituting the second cartridge
Thermal conductivity.In addition, first roller of the 2nd aspect of the present invention etc. includes roller main body portion and cartridge, it is specified that composition roller master
Thermal conductivity, the thermal conductivity of the second metal material of composition cartridge of first metal material in body portion.Therefore, it can be fitted
In the cooling velocity of the manufacture of the sheetmolding product of thermoplastic resin.In addition, making first by the first metal material of high heat conductance
Cartridge or roller main body portion make the second cartridge or cartridge by the second metal material of lower thermal conductivity, therefore, with
The cooling of molten thermoplastic resin's (piece) after second cartridge or cartridge just contact is delayed by, and can be obtained for turning
The transferring rate for printing the time required for optical patterns etc., therefore making optical patterns etc. improves, and will be disengaged from the first cylindrical portion
Sheetmolding product before part or roller main body portion are sufficiently cooled, therefore can effectively prevent the hair of the removing trace in sheetmolding product
It is raw.Therefore, every physical property can be obtained and do not have discrepant sheetmolding product (film molded product) as far as possible in central portion and end.
Detailed description of the invention
Figure 1A and Figure 1B is the diagrammatic cross-section of the roller of the melting extrusion molding figuration of embodiment 1 respectively and indicates
The concept map of the configuration of the roller assembly of mold and melting extrusion molding figuration.
Fig. 2 is the diagrammatic cross-section of the roller of the melting extrusion molding figuration of embodiment 2.
Fig. 3 A and Fig. 3 B are the roller of the melting extrusion molding figuration of embodiment 3 and its diagrammatic cross-section of variation.
Fig. 4 A and Fig. 4 B are the roller of the melting extrusion molding figuration of embodiment 4 and the section signal in roller main body portion respectively
Figure.
Fig. 5 is to indicate to measure the piece formed using the roller of the melting extrusion molding figuration of embodiment 1 and comparative example 1
The curve graph of the result of the haze value of molded product.
Specific embodiment
Hereinafter, referring to attached drawing, the present invention is illustrated according to embodiment, but the present invention is not limited to embodiment, it is each in embodiment
Kind numerical value and material are to illustrate.
Embodiment 1
Embodiment 1 is related to the roller of the melting extrusion molding figuration of the 1st aspect of the present invention, melting extrusion molding figuration
Roller assembly and melting extrusion forming method.Figure 1A is indicated the roller (first of the melting extrusion molding figuration of embodiment 1
Roller) first roller 1A of 1A when being cut off with the imaginary plane comprising axis diagrammatic cross-section, Figure 1B indicates mold and melting extrusion
Form the concept map of the configuration status of the roller assembly of figuration.
First roller 1A of embodiment 1 is the melting extrusion molding figuration used in the melting extrusion molding of thermoplastic resin
Roller, comprising:
The metal roller main body portion 10 for being internally provided with thermophore flow path 11,
Cover 12 and of the first cartridge on the surface of the center portion in roller main body portion 10
Cover second cartridge 13 on the surface of the both ends part in roller main body portion 10.
Moreover, the first cartridge 12 is made by the first metal material of the thermal conductivity with 40W/mK or more, second
Cartridge 13 is made by the second metal material with 20W/mK thermal conductivity below, the first cartridge 12 and second
At least part of shape component 13 is bonded together.It constitutes the first metal material of the first cartridge 12, constitute the second tubular
Second metal material of component 13 is specifically as shown in table 2 below.
The roller assembly of the melting extrusion molding figuration of embodiment 1, as shown in Figure 1B, including the above embodiments 1
The second roller 2 of first roller 1A and the pressing opposed with the first roller 1A.In embodiment 1, the second roller 2 by fluororesin rubber
Roller is constituted.
First cartridge 12 and the second cartridge 13 are installed on roller main body portion 10 by hot jacket method.First of room temperature
The internal diameter D of shape component 12 and the second cartridge 132-iValue, room temperature roller main body portion 10 outer diameter D1-oValue indicate following
Table 2 in.That is, hot jacket magnitude of interference is set as 0.1mm.In addition, by the wall thickness of the first cartridge 12 and the second cartridge 13
It is set as 7.00mm.In addition, roller main body portion 10 is set as opposite from the side in roller main body portion 10 by cutting drilling in embodiment 1
In the so-called slotter for the thermophore flow path 11 for being axially set in parallel circular tube shaped.The item number of thermophore flow path 11 is inherently
Arbitrarily.Thermophore as roller main body portion 10 uses thermophore oily.In addition, constituting the first cartridge 12 and the second cylindrical portion
First metal material of part 13 and the coefficient of linear expansion of the second metal material are slightly larger than the metal material for constituting roller main body portion 10
Coefficient of linear expansion, but by by hot jacket magnitude of interference obtain it is slightly larger, the first cartridge 12 and the second tubular can be prevented
The loosening of component 13.According to circumstances, the end of the second cartridge 13 can also be welded to roller main body portion 10 to prevent from dallying
With fall off.
The surface of the first cartridge 12 and the second cartridge 13 until surface roughness is ground to about 0.7S,
The electrolysis nickel coating for being formed with coating 14, being specifically form thickness about 0.1mm.After the surface of coating 14 carries out polishing grinding,
Micro concavo-convex shape is formed according to sand-blast.Coating 14 on the surface of the first cartridge 12 and the second cartridge 13
Formed and optical patterns processing the first cartridge 12 and the second cartridge 13 are mounted on it is laggard in roller main body portion 10
Row.(refractive index: the first cartridge 1.49) is made using limited commercial firm Gluelabo UV gel-type resin GLX18-73N
12 and second cartridge 13 surface (coating 14) transparent replication product, measure its haze value (turbidity), be as a result respectively
86% and 85%, the surface roughness of the two is of substantially equal.
W is set as in the width that the roller for using melting extrusion molding figuration is carried out the molding sheetmolding product of melting extrusion0、
The length of first cartridge 12 is set as X1When, meet
W0> X1。
Or meet
30mm≤W0- X1≤300mm。
In addition, the length of each second cartridge 13 is set as X2When, meet
30mm≤X2≤300mm。
In turn, the length of the second cartridge 13 is being set as X2When, meet
(X1+2·X2) > W0+30(mm)。
By specific X1、X2And W0Value indicate in table 2 below.In addition, the first cartridge 12 and the second cylindrical portion
Total length (X of part 131+2·X2) identical as the face length in roller main body portion 10.Furthermore it is preferred that being set as X2Region and sheetmolding
The state of the end overlapping 30mm or more of product.
[table 2]
Constitute the metal material in roller main body portion
In embodiment 1, polycarbonate resin (PC resin, Mitsubishi Engineering-Plastics strain formula meeting are used as thermoplastic resin
Society's polycarbonate resin " Iupilon H3000 ").In addition, the piece obtained in the melting extrusion forming method of embodiment 1 at
The nominal thickness of type product (film molded product) is 130 μm, width W0As shown in table 2.Obtained sheetmolding product (film molded product) are light
Diffusion sheet (optical diffusion film), is formed with frosted decorative pattern.
In embodiment 1, using well known melting extrusion molding machine, make from mold squeeze out molten thermoplastic resin from
Pass through between first roller 1A and the second roller 2, pressure thus is applied to the molten thermoplastic resin of sheet, obtains sheetmolding product (film
Molded product).Condition of molding is indicated in table 3 below.
[table 3]
As comparative example 1, cartridge (size and imaginary the first cartridge 12 by embodiment 1 of S45C are used
It is identical with the cartridge that 13 integration of the second cartridge obtains), in addition, operating similarly to Example 1, make the first roller.
Using the transparent replication product on the surface (coating) of UV gel-type resin GLX18-73N production cartridge, its haze value is measured,
As a result it is 86%, confirms surface shape substantially the same manner as Example 1.Then, under the condition that is similarly to Example 1 by piece
Molded product (film molded product) molding.
Fig. 5 indicates that measurement uses the result of the haze value of the molding sheetmolding product of the first roller of embodiment 1 and comparative example 1.
Wherein, in Fig. 5, " A " indicates molding as a result, " B " indicates the first roller using comparative example 1 using the first roller of embodiment 1
Molding result.In embodiment 1, in molding sheetmolding product (film molded product), there is no removing traces etc. by from the
Bad order caused by the demoulding of one cartridge 12 is bad is 71% to 72% in central portion, in end when measuring haze value
It is 70% to 72%, in central portion and end, haze value is almost without difference.On the other hand, in comparative example 1, molding
Molded product (film molded product) although there is no removing trace etc. as the demoulding from cartridge it is bad caused by bad order,
It is 71% to 72% in central portion but when measuring haze value, is 67% to 70% in end, in central portion and end, confirmation
There is about 3% difference to haze value.
As described above, in embodiment 1, by 13 structure of roller main body portion 10 and the first cartridge 12 and the second cartridge
At the first roller 1A, it is specified that constituting the thermal conductivity of the first metal material of the first cartridge 12, constituting the second cartridge 13
The thermal conductivity of second metal material, therefore the cooling velocity for being suitable for the manufacture of the sheetmolding product of thermoplastic resin can be obtained.Separately
Outside, the second cartridge 13 is made by the second metal material of lower thermal conductivity, therefore after just contacting with the second cartridge 13
The cooling of molten thermoplastic resin's (piece) is delayed by, and can obtain time required for for transferring optical patterns etc., Neng Gouti
The transferring rate of high optical patterns etc..Moreover, because roller main body portion 10 is made by the first metal material, so will be from the second tubular
Sheetmolding product before component 13 is detached from are sufficiently cooled, therefore can effectively prevent removing the generation of trace in sheetmolding product.And
And haze value can be obtained and do not have discrepant sheetmolding product (film molded product) in central portion and end.
Embodiment 2
Embodiment 2 is the deformation of embodiment 1.Fig. 2 is indicated the roller (first of the melting extrusion molding figuration of embodiment 2
Roller) 1B with comprising axis imaginary plane cut off when the first roller 1B diagrammatic cross-section.
In example 2, also referred to as propellers, thermophore flow path 21 spiral two are made in roller main body portion 20
Pipe roller again.The rule in roller main body portion 20 and the first cartridge 22 and the second cartridge 23 in the first roller 1B of embodiment 2
Lattice are as shown in table 2.Similarly to Example 1, the first cartridge 22 and the second cartridge 23 are installed on roller master by hot jacket method
The wall thickness of hot jacket magnitude of interference, the first cartridge 22 and the second cartridge 23 is set as same as Example 1 by body portion 20.?
The continuous next door (dividing wall) 25 that the axis along roller main body portion 20 spirally extends is provided in thermophore flow path 21.This
Outside, the quantity in next door 25 is essentially any.Thermophore as roller main body portion 20 uses thermophore oily.
In addition, forming the electrolytic nickel phosphorus of thickness about 0.3mm on the surface of the first cartridge 22 and the second cartridge 23
100 μm of nominal spacing, 50 μm of nominal height, nominal angle 90 is arranged by the machining using diamond bit in coating 24
The prism decorative pattern of degree.It is different from embodiment 1, as the second roller 2, use the metallic elastic roller for implementing hard chrome plating.
In example 2, similarly to Example 1, using polycarbonate resin " IupilonH3000 ".In addition, implementing
The nominal thickness of sheetmolding product obtained in the melting extrusion forming method of example 2 (film molded product) is 300 μm.Obtained at
Type product (film molded product) are blast piece (brightness enhancement film), are formed with prism decorative pattern.
In example 2, well known melting extrusion molding machine is also used, the molten thermoplastic resin squeezed out from mold is made
By thus applying pressure to the molten thermoplastic resin of sheet, obtaining sheetmolding product (film between the first roller 1B and the second roller 2
Molded product).Condition of molding indicates in table 4 below.
[table 4]
The appearance of molding prism film is good.Specifically, the central portion of molding sheetmolding product (film molded product) is flat
Equal transferring rate is 85%, and the average transferring rate of end is 84%, is confirmed in central portion and end, average transferring rate almost without
Difference.In addition, the thick wall part of the edge by making sheetmolding product is easy pressing, it can be seen that the opposite raising of transferring rate.
As comparative example 2, (size and imagined the first cartridge 22 of embodiment 2 using the cartridge of S45C
It is identical with the cartridge that 23 integration of the second cartridge obtains), other make the first roller similarly to Example 2.Then,
Sheetmolding product (film molded product) is formed with condition similarly to Example 2.The center of molding sheetmolding product (film molded product)
The average transferring rate in portion is 83%, and the average transferring rate of end is 80%, and transferring rate is relatively low, has confirmed average transferring rate and has existed
There are difference in central portion and end.
Embodiment 3
Embodiment 3 is the deformation of embodiment 1 or embodiment 2.Melting extrusion molding figuration is indicated in Fig. 3 A or Fig. 3 B
The diagrammatic cross-section of roller (the first roller).In addition, the first roller 1C shown in Fig. 3 A and Fig. 3 B is the deformation of the first roller of embodiment 1
Example.In embodiment 3, both ends of second cartridge 13 across the extension 12A covering roller main body portion 10 of the first cartridge
The surface divided.The extension 12A of first cartridge connects with roller main body portion 10, and the second cartridge 13 is configured in the first tubular
On the extension 12A of component.Specifically, in the inner surface of the second cartridge 13 and the extension 12A of the first cartridge
Outer surface form thread (not shown), the extension 12A of the second cartridge 13 and the first cartridge is passed through and is screwed togather
And it is integrated.In addition, the second cartridge 13 is not limited to such side with the integrated of the extension 12A of the first cartridge
Method.Can also be integrated with the extension 12A of the first cartridge by the second cartridge 13 by hot jacket method, it can also pass through
It welds the second cartridge 13 is integrated with the extension 12A of the first cartridge.
Using the first roller 1C of embodiment 3 shown in Fig. 3 A, formed.Table 5 below indicates the rule of first roller 1C etc.
Lattice, but roller main body portion 10 is made of first metal material identical with the first cartridge 12.In addition, in embodiment 3, also with reality
It applies example 2 equally, forms the electroless nickel phosphorus of thickness about 0.3mm on the surface of the first cartridge 12 and the second cartridge 113
Coating 14, by using diamond bit machining, throughout the first roller 1C length 700mm setting 100 μm of nominal spacing,
The prism decorative pattern of 50 μm of nominal height, 90 degree of nominal angle.It is different from embodiment 1, as the second roller 2, similarly to Example 2,
Use the metallic elastic roller for implementing hard chrome plating.
[table 5]
Constitute the metal material in roller main body portion
In embodiment 3, polycarbonate resin (PC resin, Mitsubishi Engineering-Plastics strain formula meeting are used as thermoplastic resin
Society's polycarbonate resin " Iupilon S3000 ").In addition, sheetmolding obtained in the melting extrusion forming method of embodiment 3
The nominal thickness of product (film molded product) is 300 μm.Obtained sheetmolding product (film molded product) are blast piece (brightness enhancement films), are formed
There is prism decorative pattern.
Then, in embodiment 3, using well known melting extrusion molding machine, make from the mold of width 800mm extrusion
Molten thermoplastic resin passes through between the first roller 1C and the second roller 2, thus applies pressure to the molten thermoplastic resin of sheet,
Obtain sheetmolding product (film molded product).Condition of molding indicates in table 6 below.
[table 6]
As comparative example 3, (size and assumed the first cartridge of embodiment 3 using the cartridge of SCM440
12 cartridges that obtain with 13 integration of the second cartridge are identical), other make the first roller similarly to Example 3.So
Afterwards, sheetmolding product (film molded product) is formed with condition similarly to Example 3.
In embodiment 3, well known melting extrusion molding machine, the molten thermoplastic resin that will be squeezed out from mold are also used
Pass through between the first roller 1C and the second roller 2, pressure thus is applied to the molten thermoplastic resin of sheet, obtains sheetmolding product
(film molded product).The appearance of molding prism film is good.Specifically, molding sheetmolding product (film molded product) central portion
Average transferring rate be 75%, the average transferring rate of end is 76%, and average transferring rate is in central portion and end almost without difference
Not.In addition, the thick wall part of the edge of sheetmolding product is easy pressing, it can be seen that the raising of opposite transferring rate.On the other hand,
In comparative example 3, the average transferring rate of the central portion of molding sheetmolding product (film molded product) be 75%, the average of end turns
Print rate is 71%, and confirming average transferring rate has big difference in central portion and end.
In addition to above point, the roller (the first roller) of the melting extrusion molding figuration of embodiment 3, melting extrusion form figuration
Roller assembly and melting extrusion forming method using first roller, can with illustrate in embodiment 1 or embodiment 2
First roller, melting extrusion molding figuration roller assembly and using first roller melting extrusion forming method equally into
Row, therefore omit detailed description.
In addition, as shown in Figure 3B, the surface of the second cartridge 13 can be also set as by the extension of the first cartridge
The form of 12B covering.In addition, the surface of the first cartridge 12 is formed with coating 14 in such form.
Embodiment 4
Embodiment 4 is related to the roller of the melting extrusion molding figuration of the 2nd aspect of the present invention, melting extrusion molding figuration
Roller assembly and melting extrusion forming method.Fig. 4 A is indicated the roller of the melting extrusion of embodiment 4 molding figuration (the
One roller) first roller 1D of 1D when being cut off with the imaginary plane comprising axis diagrammatic cross-section, Fig. 4 B indicates roller main body portion 30
Diagrammatic cross-section.In addition, concept map and Figure 1B institute of the configuration status of the roller assembly of mold and melting extrusion molding figuration
That shows is identical.
First roller 1D of embodiment 4 is that the melting extrusion used in the melting extrusion molding of thermoplastic resin forms figuration
Roller, comprising:
Roller main body portion 30 is being internally provided with thermophore flow path 11, and the outer surface setting in both ends part 31 is jagged
Portion 32；With
Cartridge 33 is entrenched in the notch section 32 of the both ends part 31 in roller main body portion 30 respectively.
Moreover, roller main body portion 30 is made by the first metal material of the thermal conductivity with 40W/mK or more, cartridge
33 are made by the second metal material with 20W/mK thermal conductivity below, the notch section 32 and cartridge in roller main body portion 30
33 at least part is bonded together.It constitutes first metal material in roller main body portion 30, constitute the second gold medal of cartridge 33
It is specific as shown in table 7 below to belong to material.
Cartridge 33 is installed on roller main body portion 30 by hot jacket method.The cartridge 33 of room temperature is indicated in table 7 below
Internal diameter D2-iValue, room temperature roller main body portion 30 notch section 32 outer diameter D1-oValue, room temperature notch section 32 and notch section
The outer diameter D of the part 30A in the roller main body portion 30 between 32 '1-oValue.That is, hot jacket magnitude of interference is set as 0.15mm.In addition, by cylinder
The wall thickness of shape component 33 is set as 8mm.In addition, in example 4, also roller main body portion 30 is made through cutting drilling from roller main body portion
The so-called slotter that the thermophore flow path 11 of circular tube shaped is set in parallel by 30 side relative to axis direction.Thermophore flow path
11 item number is essentially any.As the thermophore in roller main body portion 30, thermophore oil is used.In addition, constituting cartridge 33
The second metal material coefficient of linear expansion be slightly larger than constitute roller main body portion 30 the first metal material coefficient of linear expansion, but
It is slightly larger by obtaining hot jacket magnitude of interference, the loosening of cartridge 33 can be prevented.It according to circumstances, can also be by cylindrical portion
The end of part 33 is welded to roller main body portion 30, to prevent from dallying and fall off.
Coating 14 same as the coating of embodiment 1 is formed in roller main body portion 30 and the surface of cartridge 33.In addition, with
Embodiment 2 is same, as the second roller 2, uses the rubber rollers of fluororesin same as the second roller 2 of embodiment 1.
The width that the roller for using melting extrusion molding figuration carries out the sheetmolding product of melting extrusion molding figuration is set as
W0, the length of the part in the roller main body portion 30 between the notch section 32 and notch section 32 in roller main body portion 30 is set as X1When, meet
W0> X1。
Alternatively, meeting
30mm≤W0- X1≤300mm。
In addition, the length of cartridge 33 is set as X2When, meet
30mm≤X2≤300mm。
In addition, meeting
(X1+2·X2) > W0+30(mm)。
Specific X1、X2And W0Value indicate in table 7 below.It is preferably set to X2Region and sheetmolding product end
It is overlapped the state of 30mm or more.
[table 7]
In example 4, polycarbonate resin (PC resin, Mitsubishi Engineering-Plastics strain formula meeting are used as thermoplastic resin
Society's polycarbonate resin " Iupilon E2000 ").In addition, sheetmolding obtained in the melting extrusion forming method of embodiment 4
The nominal thickness of product (film molded product) is 130 μm, width W0As shown in table 7.Obtained sheetmolding product (film molded product) and reality
It is same to apply example 1, is light diffusing sheet (optical diffusion film), is formed with frosted decorative pattern.
In example 4, well known melting extrusion molding machine is also used, the molten thermoplastic resin squeezed out from mold is made
Pass through between the first roller 1D and the second roller 2, pressure thus is applied to the molten thermoplastic resin of sheet, obtains sheetmolding product
(film molded product).Condition of molding is indicated in table 8 below.The appearance of obtained light diffusing sheet (optical diffusion film) is good,
Haze value is in central portion and end almost without difference.
[table 8]
More than, the present invention is illustrated according to preferred embodiment, but the present invention is not limited to these Examples.It is said in embodiment
The roller of bright melting extrusion molding figuration, melting extrusion form the structure of the roller assembly of figuration, melting extrusion molding machine
At, structure, the material used, melting extrusion condition of molding etc. to illustrate, can suitably change.For example, can will be in embodiment 2
The coating of middle explanation be suitable for embodiment 1, embodiment 4, can also by the coating illustrated in embodiment 1 be suitable for embodiment 2~
Embodiment 3.
The explanation of symbol
The first roller of 1A, 1B, 1C, 1D, 2 second rollers, 10,20,30 roller main body portions, 11,
21 thermophore flow paths, 12,22 first cartridges, 12A, the extension of the first cartridge of 12B,
13,23,113 second cartridges, 14,24 coating, 25 next doors, 31 first roller 1D two
End part, 32 notch sections, 33 cartridges
Claims (18)
1. a kind of roller of melting extrusion molding figuration, it is characterised in that:
Its melting extrusion molding for being used for thermoplastic resin,
The melting extrusion molding figuration roller include:
The metal roller main body portion for being internally provided with thermophore flow path,
Cover roller main body portion center portion surface the first cartridge and
Second cartridge on the surface of the both ends part in roller main body portion is covered,
First cartridge is made by the first metal material of the thermal conductivity with 40W/mK or more,
Second cartridge is made by the second metal material with 20W/mK thermal conductivity below,
What the first cartridge and the second cartridge were not able to rotate with first cartridge relative to second cartridge
Mode is bonded together,
Be formed with coating on the surface of the first cartridge and the second cartridge, the surface of coating be formed with frosted decorative pattern,
Prism decorative pattern or microlens array decorative pattern.
2. the roller of melting extrusion molding figuration as described in claim 1, it is characterised in that:
Surface of second cartridge across the both ends part in the extension covering roller main body portion of the first cartridge.
3. the roller of melting extrusion molding figuration as described in claim 1, it is characterised in that:
The surface of second cartridge is covered by the extension of the first cartridge.
4. the roller of melting extrusion molding figuration as described in claim 1, it is characterised in that:
Coating includes the coating in copper coating, nickel coating, electroless nickel-phosphorus coating, electrolysis nickel-phosphorus coating and chrome plating.
5. the roller of melting extrusion molding figuration as described in any one of claims 1 to 4, it is characterised in that:
First metal material includes carbon steel, chromium steel or chrome-molybdenum steel.
6. the roller of melting extrusion molding figuration as described in any one of claims 1 to 4, it is characterised in that:
Second metal material includes nickel steel or stainless steel.
7. the roller of melting extrusion molding figuration as described in any one of claims 1 to 4, it is characterised in that:
Roller main body portion is made of the first metal material.
8. a kind of roller of melting extrusion molding figuration, it is characterised in that:
Its melting extrusion molding for being used for thermoplastic resin,
The melting extrusion molding figuration roller include:
Roller main body portion is internally provided with thermophore flow path and the outer surface of both ends part is provided with notch section；With
Cartridge, it is chimeric with the notch section of both ends part in roller main body portion respectively,
Roller main body portion is made by the first metal material of the thermal conductivity with 40W/mK or more,
Cartridge is made by the second metal material with 20W/mK thermal conductivity below,
Roller main body portion engages in such a way that the cartridge is not able to rotate relative to the outer surface in the roller main body portion with cartridge
Together,
It is formed with coating on the surface in roller main body portion and cartridge, is formed with frosted decorative pattern, prism decorative pattern on the surface of coating
Or microlens array decorative pattern.
9. the roller of melting extrusion molding figuration as claimed in claim 8, it is characterised in that:
Coating includes the coating in copper coating, nickel coating, electroless nickel-phosphorus coating, electrolysis nickel-phosphorus coating and chrome plating.
10. the roller of melting extrusion molding figuration as claimed in claim 8 or 9, it is characterised in that:
First metal material includes carbon steel, chromium steel or chrome-molybdenum steel.
11. the roller of melting extrusion molding figuration as claimed in claim 8 or 9, it is characterised in that:
Second metal material includes nickel steel or stainless steel.
12. a kind of roller assembly of melting extrusion molding figuration, it is characterised in that:
Roller and the pressing roller opposed with the melting extrusion molding roller of figuration including melting extrusion molding figuration,
Melting extrusion molding figuration roller include:
The metal roller main body portion for being internally provided with thermophore flow path,
Cover roller main body portion center portion surface the first cartridge and
Second cartridge on the surface of the both ends part in roller main body portion is covered,
First cartridge is made by the first metal material of the thermal conductivity with 40W/mK or more,
Second cartridge is made by the second metal material with 20W/mK thermal conductivity below,
What the first cartridge and the second cartridge were not able to rotate with first cartridge relative to second cartridge
Mode is bonded together,
Be formed with coating on the surface of the first cartridge and the second cartridge, the surface of coating be formed with frosted decorative pattern,
Prism decorative pattern or microlens array decorative pattern.
13. a kind of roller assembly of melting extrusion molding figuration, it is characterised in that:
Roller and the pressing roller opposed with the melting extrusion molding roller of figuration including melting extrusion molding figuration,
Melting extrusion molding figuration roller include:
Roller main body portion is being internally provided with thermophore flow path, and the outer surface of both ends part is provided with notch section；With
Cartridge, it is chimeric with the notch section of both ends part in roller main body portion respectively,
Roller main body portion is made by the first metal material of the thermal conductivity with 40W/mK or more,
Cartridge is made by the second metal material with 20W/mK thermal conductivity below,
Roller main body portion engages in such a way that the cartridge is not able to rotate relative to the outer surface in the roller main body portion with cartridge
Together,
It is formed with coating on the surface in roller main body portion and cartridge, is formed with frosted decorative pattern, prism decorative pattern on the surface of coating
Or microlens array decorative pattern.
14. a kind of melting extrusion forming method, it is characterised in that:
It is the melting extrusion forming method that the roller assembly of figuration is formed using melting extrusion,
The roller assembly of melting extrusion molding figuration includes the roller of melting extrusion molding figuration and forms with melting extrusion
The opposed pressing roller of the roller of figuration,
Melting extrusion molding figuration roller include:
The metal roller main body portion for being internally provided with thermophore flow path,
Cover roller main body portion center portion surface the first cartridge and
Second cartridge on the surface of the both ends part in roller main body portion is covered,
First cartridge is made by the first metal material of the thermal conductivity with 40W/mK or more,
Second cartridge is made by the second metal material with 20W/mK thermal conductivity below,
What the first cartridge and the second cartridge were not able to rotate with first cartridge relative to second cartridge
Mode is bonded together,
Be formed with coating on the surface of the first cartridge and the second cartridge, the surface of coating be formed with frosted decorative pattern,
Prism decorative pattern or microlens array decorative pattern,
The melting extrusion forming method makes the molten thermoplastic resin squeezed out from mold in the roller of melting extrusion molding figuration
Pass through between pressing roller, to obtain sheetmolding product.
15. a kind of melting extrusion forming method, it is characterised in that:
It is the melting extrusion forming method that the roller assembly of figuration is formed using melting extrusion,
The roller assembly of melting extrusion molding figuration includes the roller of melting extrusion molding figuration and forms with melting extrusion
The opposed pressing roller of the roller of figuration,
Melting extrusion molding figuration roller include:
Roller main body portion is being internally provided with thermophore flow path, and the outer surface of both ends part is provided with notch section；With
Cartridge, it is chimeric with the notch section of both ends part in roller main body portion respectively,
Roller main body portion is made by the first metal material of the thermal conductivity with 40W/mK or more,
Cartridge is made by the second metal material with 20W/mK thermal conductivity below,
Roller main body portion engages in such a way that the cartridge is not able to rotate relative to the outer surface in the roller main body portion with cartridge
Together,
It is formed with coating on the surface in roller main body portion and cartridge, is formed with frosted decorative pattern, prism decorative pattern on the surface of coating
Or microlens array decorative pattern,
The melting extrusion forming method makes the molten thermoplastic resin squeezed out from mold in the roller of melting extrusion molding figuration
Pass through between pressing roller, to obtain sheetmolding product.
16. the melting extrusion forming method as described in claims 14 or 15, it is characterised in that:
Obtained sheetmolding product with a thickness of 0.05mm to 0.5mm.
17. the melting extrusion forming method as described in claims 14 or 15, it is characterised in that:
Thermoplastic resin is selected from polycarbonate resin, acrylic resin, polystyrene resin, thermoplastic polyester, ring-type
Thermoplastic resin in polyolefin resin, poly- methyl-1-pentene olefine resin.
18. the melting extrusion forming method as described in claims 14 or 15, it is characterised in that:
Obtained sheetmolding product are optical diffusion film or blast piece.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/060422 WO2015155873A1 (en) | 2014-04-10 | 2014-04-10 | Shaping roll for melt extrusion molding, shaping roll assembly for melt extrusion molding, and melt extrusion molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106163762A CN106163762A (en) | 2016-11-23 |
| CN106163762B true CN106163762B (en) | 2019-07-16 |
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